JP6913640B2 - Cushion connecting rod for saddle-mounted vehicles - Google Patents

Cushion connecting rod for saddle-mounted vehicles Download PDF

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JP6913640B2
JP6913640B2 JP2018010481A JP2018010481A JP6913640B2 JP 6913640 B2 JP6913640 B2 JP 6913640B2 JP 2018010481 A JP2018010481 A JP 2018010481A JP 2018010481 A JP2018010481 A JP 2018010481A JP 6913640 B2 JP6913640 B2 JP 6913640B2
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connecting rod
cushion
metal member
cushion connecting
fiber
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JP2019127178A (en
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裕喜 吉野
裕喜 吉野
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2018010481A priority Critical patent/JP6913640B2/en
Priority to EP19151729.1A priority patent/EP3517421B1/en
Priority to US16/253,615 priority patent/US11325316B2/en
Priority to CN201910061975.8A priority patent/CN110077513B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/283—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay for cycles without a pedal crank, e.g. motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02—Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
    • B62K25/10—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for rear wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/286—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay the shock absorber being connected to the chain-stay via a linkage mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3091—Bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer

Description

本発明は、鞍乗型車両のクッションコンロッドに係り、特に、スイングアームの揺動動作に伴って引張荷重がかかる自動二輪車のクッションコンロッドに関する。 The present invention relates to a cushion connecting rod of a saddle-mounted vehicle, and more particularly to a cushion connecting rod of a motorcycle in which a tensile load is applied as the swing arm swings.

近年、車両の軽量化を推進するため、従来は金属等で形成されていた構成部品を、繊維素材を合成樹脂で固めてなる繊維強化樹脂に置き換える試みがなされている。 In recent years, in order to promote weight reduction of vehicles, attempts have been made to replace components conventionally formed of metal or the like with fiber reinforced resin obtained by solidifying a fiber material with a synthetic resin.

特許文献１には、繊維材を一方向に配向した繊維強化樹脂部材と、繊維材を多方向にランダム配向した繊維強化樹脂部材とを接合してなる自動車用部品が開示されている。 Patent Document 1 discloses an automobile part formed by joining a fiber-reinforced resin member in which a fiber material is oriented in one direction and a fiber-reinforced resin member in which a fiber material is randomly oriented in multiple directions.

国際公開第２０１２／１３７５５４号明細書International Publication No. 2012/137554

しかし、繊維強化樹脂部材は、強度限界を超える応力が作用した際に、目視では認識できない初期の破損状態から一気に屈折や破断等の脆弱な破損状態に移行することがあるため、応力のかかる構成部品に適用しにくいという課題があった。一方、構成部品の一部を繊維強化樹脂に置き換えるマルチマテリアル化によれば、応力のかかる構成部品への適用がしやすくなるが、材料特性の異なる両者を強固に結合する接着剤の開発に時間とコストがかかるという課題がある。 However, when a stress exceeding the strength limit is applied, the fiber-reinforced resin member may suddenly shift from an initial fracture state that cannot be visually recognized to a fragile fracture state such as refraction or fracture, so that the structure is stressed. There was a problem that it was difficult to apply to parts. On the other hand, multi-materialization, which replaces some of the components with fiber reinforced plastic, makes it easier to apply to stressed components, but it takes time to develop an adhesive that firmly binds both with different material properties. There is a problem that it costs money.

本発明の目的は、上記従来技術の課題を解決し、特別な接着剤を用いずに、繊維複合材と金属とを組み合わせると共に初期の破損状態を目視で確認することができる鞍乗型車両のクッションコンロッドを提供することにある。 An object of the present invention is to solve the above-mentioned problems of the prior art, to combine a fiber composite material and a metal without using a special adhesive, and to visually confirm the initial damaged state of a saddle-type vehicle. To provide cushion connecting rods.

前記目的を達成するために、本発明は、後輪（ＷＲ）を回転自在に軸支すると共に車体フレーム（２）に対して揺動可能に取り付けられるスイングアーム（１７）と、該スイングアーム（１７）に揺動反力を与えるリヤクッション（１５）と、該リヤクッション（１５）および前記スイングアーム（１７）を互いに揺動可能に軸支するリンクプレート（３０）と、該リンクプレート（３０）の一端部を前記車体フレーム（２）に揺動可能に軸支するクッションコンロッド（４０）とを有する自動二輪車（１）に適用される鞍乗型車両のクッションコンロッドにおいて、前記クッションコンロッド（４０）が、前記リヤクッション（１５）の弾発力に反して前記スイングアーム（１７）が揺動する際に荷重（Ｆ）が加えられる長尺部材であり、前記クッションコンロッド（４０）は、金属部材（６０）の表面の一部を、無端状をなす繊維強化樹脂（５０）で覆った構成とされており、前記繊維強化樹脂（５０）が、フィルム状の接着剤（５２）で前記金属部材（６０）の表面に接着されている点に第１の特徴がある。 In order to achieve the above object, the present invention includes a swing arm (17) that rotatably supports the rear wheel (WR) and is swingably attached to the vehicle body frame (2), and the swing arm ( A rear cushion (15) that applies a swing reaction force to the 17), a link plate (30) that pivotally supports the rear cushion (15) and the swing arm (17) with each other, and the link plate (30). In the cushion connecting rod of a saddle-mounted vehicle applied to a motorcycle (1) having a cushion connecting rod (40) that swingably supports one end of the body frame (2), the cushion connecting rod (40). ) Is a long member to which a load (F) is applied when the swing arm (17) swings against the elastic force of the rear cushion (15), and the cushion connecting rod (40) is made of metal. A part of the surface of the member (60) is covered with a fiber-reinforced resin (50) forming an endless shape, and the fiber-reinforced resin (50) is made of the metal with a film-like adhesive (52). The first feature is that it is adhered to the surface of the member (60).

また、前記金属部材（６０）の長手方向の両端部に、前記荷重（Ｆ）が加えられる支持部（６１）がそれぞれ設けられており、前記両端部の支持部（６１）の間に、前記金属部材（６０）の厚さ寸法（Ｔ）が前記支持部（６１）の厚さ寸法（Ｔａ）より小さくなる凹部（Ｃ）が設けられると共に、複数の肉抜き孔（６２，６５，６６）が形成されており、前記繊維強化樹脂（５０）が、少なくとも前記支持部（６１）および前記凹部（Ｃ）の表面を覆う点に第２の特徴がある。 Further, support portions (61) to which the load (F) is applied are provided at both ends of the metal member (60) in the longitudinal direction, and the support portions (61) at both ends are provided with the support portions (61). A recess (C) in which the thickness dimension (T) of the metal member (60) is smaller than the thickness dimension (Ta) of the support portion (61) is provided, and a plurality of lightening holes (62, 65, 66) are provided. The second feature is that the fiber-reinforced resin (50) covers at least the surfaces of the support portion (61) and the recess (C).

また、前記繊維強化樹脂（５０）が、前記金属部材（６０）の表面に長尺の帯状素材（５１）を複数回巻き付けることによって構成される点に第３の特徴がある。 The third feature is that the fiber reinforced resin (50) is formed by winding a long strip-shaped material (51) around the surface of the metal member (60) a plurality of times.

また、前記繊維強化樹脂（５０）の繊維方向が、前記帯状素材（５１）の長手方向に沿っている点に第４の特徴がある。 Further, the fourth feature is that the fiber direction of the fiber reinforced resin (50) is along the longitudinal direction of the strip-shaped material (51).

さらに、前記金属部材（６０）に設けられる凹部（Ｃ）が、長手方向の略中央で一定の厚さ寸法（Ｔ）を維持する直線部（Ａ）と、該直線部（Ａ）の両端部から前記支持部（６１）に向かって徐々に厚さ寸法を増す傾斜部（Ｂ）とからなる点に第５の特徴がある。 Further, the recesses (C) provided in the metal member (60) are a straight portion (A) that maintains a constant thickness dimension (T) at substantially the center in the longitudinal direction, and both end portions of the straight portion (A). The fifth feature is that it is composed of an inclined portion (B) whose thickness is gradually increased toward the support portion (61).

第１の特徴によれば、後輪（ＷＲ）を回転自在に軸支すると共に車体フレーム（２）に対して揺動可能に取り付けられるスイングアーム（１７）と、該スイングアーム（１７）に揺動反力を与えるリヤクッション（１５）と、該リヤクッション（１５）および前記スイングアーム（１７）を互いに揺動可能に軸支するリンクプレート（３０）と、該リンクプレート（３０）の一端部を前記車体フレーム（２）に揺動可能に軸支するクッションコンロッド（４０）とを有する自動二輪車（１）に適用される鞍乗型車両のクッションコンロッドにおいて、前記クッションコンロッド（４０）が、前記リヤクッション（１５）の弾発力に反して前記スイングアーム（１７）が揺動する際に荷重（Ｆ）が加えられる長尺部材であり、前記クッションコンロッド（４０）は、金属部材（６０）の表面の一部を、無端状をなす繊維強化樹脂（５０）で覆った構成とされており、前記繊維強化樹脂（５０）が、フィルム状の接着剤（５２）で前記金属部材（６０）の表面に接着されているので、金属部材の強度限界を超える引張荷重がクッションコンロッドに加えられた際に、金属部材の変形に伴って金属部材から繊維強化樹脂が剥離した状態を目視で確認することが可能となる。この場合でも、無端状をなす繊維強化樹脂が破断しない限りクッションコンロッドの機能を維持できるので、機能不全を生じる前に交換作業を行うことが可能となる。 According to the first feature, a swing arm (17) that rotatably supports the rear wheel (WR) and is swingably attached to the vehicle body frame (2) and swings to the swing arm (17). A rear cushion (15) that applies a reaction force, a link plate (30) that swingably supports the rear cushion (15) and the swing arm (17), and one end of the link plate (30). In the cushion connecting rod of a saddle-mounted vehicle applied to a motorcycle (1) having a cushion connecting rod (40) that swingably supports the vehicle body frame (2), the cushion connecting rod (40) is the above. A long member to which a load (F) is applied when the swing arm (17) swings against the elastic force of the rear cushion (15), and the cushion connecting rod (40) is a metal member (60). A part of the surface of the connecting rod is covered with a fiber-reinforced resin (50) forming an endless shape, and the fiber-reinforced resin (50) is coated with a film-like adhesive (52) to the metal member (60). Since it is adhered to the surface of the metal member, when a tensile load exceeding the strength limit of the metal member is applied to the cushion connecting rod, it is visually confirmed that the fiber reinforced resin is peeled off from the metal member due to the deformation of the metal member. It becomes possible. Even in this case, the function of the cushion connecting rod can be maintained as long as the endless fiber reinforced resin is not broken, so that the replacement work can be performed before the malfunction occurs.

第２の特徴によれば、前記金属部材（６０）の長手方向の両端部に、前記荷重（Ｆ）が加えられる支持部（６１）がそれぞれ設けられており、前記両端部の支持部（６１）の間に、前記金属部材（６０）の厚さ寸法（Ｔ）が前記支持部（６１）の厚さ寸法（Ｔａ）より小さくなる凹部（Ｃ）が設けられると共に、複数の肉抜き孔（６２，６５，６６）が形成されており、前記繊維強化樹脂（５０）が、少なくとも前記支持部（６１）および前記凹部（Ｃ）の表面を覆うので、強度限界を超える引張荷重がクッションコンロッドに加えられた際に、特に、凹部に接着されている部分の繊維強化樹脂が、金属部材から剥離する方向の力を受けることとなる。これにより、凹部において繊維強化樹脂の剥離が生じやすくなり、目視によってクッションコンロッドの交換時期を確認することが容易となる。また、複数の肉抜き孔を設けることにより、金属部材の軽量化を図ると共にクッションコンロッドの剛性を必要最低限に抑えて、車体の軽量化を推進することができる。 According to the second feature, the support portions (61) to which the load (F) is applied are provided at both ends of the metal member (60) in the longitudinal direction, and the support portions (61) at both ends are provided. ), A recess (C) in which the thickness dimension (T) of the metal member (60) is smaller than the thickness dimension (Ta) of the support portion (61) is provided, and a plurality of lightening holes ( 62, 65, 66) are formed, and the fiber reinforced resin (50) covers at least the surfaces of the support portion (61) and the recess (C), so that a tensile load exceeding the strength limit is applied to the cushion control rod. When added, the fiber-reinforced resin in the portion bonded to the recess receives a force in the direction of peeling from the metal member. As a result, the fiber reinforced resin is likely to peel off in the recesses, and it becomes easy to visually confirm the replacement time of the cushion connecting rod. Further, by providing a plurality of lightening holes, it is possible to reduce the weight of the metal member and suppress the rigidity of the cushion connecting rod to the minimum necessary to promote the weight reduction of the vehicle body.

第３の特徴によれば、前記繊維強化樹脂（５０）が、前記金属部材（６０）の表面に長尺の帯状素材（５１）を複数回巻き付けることによって構成されるので、長尺の帯状素材を巻き付けることから素材の切れ端が発生することが少なく、繊維強化樹脂の製造における歩留まりが高められる。また、巻き付け行程を機械化することにより、素材を手作業で張り付ける工程をなくして生産工数を低減できる。 According to the third feature, since the fiber reinforced resin (50) is formed by winding the long strip-shaped material (51) around the surface of the metal member (60) a plurality of times, the long strip-shaped material (51) is formed. Since the material is wrapped around the material, scraps of the material are less likely to be generated, and the yield in the production of the fiber reinforced resin is improved. Further, by mechanizing the winding process, it is possible to reduce the production man-hours by eliminating the process of manually pasting the material.

第４の特徴によれば、前記繊維強化樹脂（５０）の繊維方向が、前記帯状素材（５１）の長手方向に沿っているので、金属部材に帯状素材を巻き付けて複数層からなる繊維強化樹脂を構成した際に、すべての層の繊維素材がつながっていることとなり、クッションコンロッドの耐引張荷重を高めることができる。また、繊維方向が一定であることで層間の接着強度も高められ、層間剥離が起こりにくくなる。 According to the fourth feature, since the fiber direction of the fiber reinforced resin (50) is along the longitudinal direction of the band-shaped material (51), the fiber reinforced resin composed of a plurality of layers by winding the band-shaped material around the metal member. When the above is constructed, the fiber materials of all layers are connected, and the tensile load resistance of the cushion conrod can be increased. Further, since the fiber direction is constant, the adhesive strength between the layers is increased, and delamination is less likely to occur.

第５の特徴によれば、前記金属部材（６０）に設けられる凹部（Ｃ）が、長手方向の略中央で一定の厚さ寸法（Ｔ）を維持する直線部（Ａ）と、該直線部（Ａ）の両端部から前記支持部（６１）に向かって徐々に厚さ寸法を増す傾斜部（Ｂ）とからなるので、強度限界を超える引張荷重がクッションコンロッドに加えられた際に、繊維強化樹脂を剥離しようとする力が直線部と傾斜部との接続点に作用して、この接続点で繊維強化樹脂の剥離が生じやすくなる。これにより、目視によってクッションコンロッドの交換時期を確認することが一層容易となる。 According to the fifth feature, the recess (C) provided in the metal member (60) has a straight portion (A) that maintains a constant thickness dimension (T) at substantially the center in the longitudinal direction, and the straight portion. Since it is composed of inclined portions (B) whose thickness gradually increases from both ends of (A) toward the support portion (61), the fibers are formed when a tensile load exceeding the strength limit is applied to the cushion resin. The force for peeling the reinforcing resin acts on the connection point between the straight portion and the inclined portion, and the fiber reinforcing resin is likely to be peeled off at this connection point. This makes it easier to visually confirm when to replace the cushion connecting rod.

本発明の一実施形態に係るクッションコンロッドを適用した自動二輪車の左側面図である。It is a left side view of the motorcycle which applied the cushion connecting rod which concerns on one Embodiment of this invention. クッションコンロッドの配設構造を示す左側面図である。It is a left side view which shows the arrangement structure of a cushion connecting rod. クッションコンロッドの斜視図である。It is a perspective view of a cushion connecting rod. クッションコンロッドを構成する繊維強化樹脂および金属部材の斜視図である。It is a perspective view of the fiber reinforced resin and the metal member which make up a cushion connecting rod. クッションコンロッドの側面図である。It is a side view of a cushion connecting rod. 図５に示す破線円部分の拡大図である。It is an enlarged view of the broken line circle part shown in FIG. 引張荷重Ｆの係り方を示すクッションコンロッドの側面図である。It is a side view of the cushion connecting rod which shows how the tensile load F is engaged. 破損状態に至ったクッションコンロッドの側面図である。It is a side view of the cushion connecting rod which reached the damaged state.

以下、図面を参照して本発明の好ましい実施の形態について詳細に説明する。図１は、本発明の一実施形態に係るクッションコンロッド４０を適用した自動二輪車１の左側面図である。鞍乗型車両としての自動二輪車１の車体フレーム２は、ヘッドパイプ６から車体後方に延出して下方に湾曲する左右一対のメインフレーム２４を有する。前輪ＷＦを回転自在に軸支する左右一対のフロントフォーク９は、ヘッドパイプ６に揺動自在に軸支されるステアリングステム（不図示）に支持されている。フロントフォーク９の上部には、操向ハンドル３が固定されている。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a left side view of a motorcycle 1 to which the cushion connecting rod 40 according to the embodiment of the present invention is applied. The body frame 2 of the motorcycle 1 as a saddle-mounted vehicle has a pair of left and right main frames 24 that extend from the head pipe 6 to the rear of the vehicle body and curve downward. A pair of left and right front forks 9 that rotatably support the front wheel WF are supported by a steering stem (not shown) that is rotatably supported by the head pipe 6. A steering handle 3 is fixed to the upper part of the front fork 9.

メインフレーム２４の後方下部には、スイングアーム１７を揺動可能に軸支するピボット１４を支持する左右一対のピボットプレート２７が連結されている。メインフレーム２４の下部には、動力源としてのエンジンＥが固定されている。エンジンＥの燃焼ガスは、排気管１３を介して車幅方向右側のマフラ１８に導かれる。エンジンＥの駆動力は、ドライブチェーン１６を介して、スイングアーム１７の後端に回転自在に軸支された後輪ＷＲに伝達される。 A pair of left and right pivot plates 27 that support the pivot 14 that swingably supports the swing arm 17 are connected to the lower rear portion of the main frame 24. An engine E as a power source is fixed to the lower part of the main frame 24. The combustion gas of the engine E is guided to the muffler 18 on the right side in the vehicle width direction via the exhaust pipe 13. The driving force of the engine E is transmitted to the rear wheel WR rotatably supported by the rear end of the swing arm 17 via the drive chain 16.

ヘッドパイプ６の前方には、ヘッドライト８を支持するフロントカウル７が配設されている。フロントカウル７の上部には、防風スクリーン４および左右一対のバックミラー５が取り付けられている。フロントカウル７の下方には、左右一対のサイドカウル１１が連結されており、サイドカウル１１の下端部には、エンジンＥの下部を覆うアンダカウル１２が連結されている。前輪ＷＦの上部を覆うフロントフェンダ１０は、フロントフォーク９に固定されている。 A front cowl 7 that supports the headlight 8 is arranged in front of the head pipe 6. A windbreak screen 4 and a pair of left and right rearview mirrors 5 are attached to the upper part of the front cowl 7. A pair of left and right side cowls 11 are connected below the front cowl 7, and an under cowl 12 covering the lower part of the engine E is connected to the lower end of the side cowl 11. The front fender 10 that covers the upper part of the front wheel WF is fixed to the front fork 9.

メインフレーム２４の上部には、燃料タンク２６が配設されている。ピボットプレート２７の上端後部には、シート２３およびリヤカウル２１を支持するリヤフレーム２２が連結されている。リヤカウル２１の後端には尾灯装置２０が設けられており、尾灯装置２０の下方にはリヤフェンダ１９が配設されている。 A fuel tank 26 is arranged on the upper part of the main frame 24. A rear frame 22 that supports the seat 23 and the rear cowl 21 is connected to the rear end of the upper end of the pivot plate 27. A taillight device 20 is provided at the rear end of the rear cowl 21, and a rear fender 19 is arranged below the taillight device 20.

スイングアーム１７の揺動動作に反力および減衰力を与えるリヤクッション１５は、車体側面視で略三角形状のリンクプレート３０を介して、車体フレーム２とスイングアーム１７とを連結している。より具体的には、車幅方向中央に配設されるリヤクッション１５の上端部は、左右一対のピボットプレート２７の間の位置で車体フレーム２に軸支されており、リヤクッション１５の下端部はリンクプレート３０の前端部に軸支されている。一方、リンクプレート３０の後方上端部は、スイングアーム１７の下部に軸支されており、リンクプレート３０の下端部は、本願発明に係るクッションコンロッド４０を介して、ピボットプレート２７の下部に軸支されている。 The rear cushion 15 that gives a reaction force and a damping force to the swinging motion of the swing arm 17 connects the vehicle body frame 2 and the swing arm 17 via a link plate 30 having a substantially triangular shape when viewed from the side surface of the vehicle body. More specifically, the upper end portion of the rear cushion 15 arranged at the center in the vehicle width direction is pivotally supported by the vehicle body frame 2 at a position between the pair of left and right pivot plates 27, and the lower end portion of the rear cushion 15 is provided. Is pivotally supported at the front end of the link plate 30. On the other hand, the rear upper end portion of the link plate 30 is pivotally supported by the lower portion of the swing arm 17, and the lower end portion of the link plate 30 is pivotally supported by the lower portion of the pivot plate 27 via the cushion connecting rod 40 according to the present invention. Has been done.

図２は、クッションコンロッド４０の配設構造を示す左側面図である。この図では、自動二輪車１の略車幅方向中央での切断面を示している。弾発力を発生するスプリング１５ａおよび減衰力を発生するダンパ機構１５ｂを有するリヤクッション１５は、ピボット１４の後方の位置で、スイングアーム１７に形成された貫通孔を通って上下方向に指向して配設される。リンクプレート３０は、車幅方向に一対のアルミ等の金属板からなる。 FIG. 2 is a left side view showing the arrangement structure of the cushion connecting rod 40. In this figure, the cut surface of the motorcycle 1 at the center in the substantially vehicle width direction is shown. The rear cushion 15 having the spring 15a for generating the elastic force and the damper mechanism 15b for generating the damping force is directed vertically through the through hole formed in the swing arm 17 at the position behind the pivot 14. Arranged. The link plate 30 is made of a pair of metal plates such as aluminum in the vehicle width direction.

前記したように、リンクプレート３０の後方上端部は、スイングアーム１７から下方に延出する延出部１７ａに対して、ボルト等からなる揺動軸３０ａによって軸支されている。また、リンクプレート３０の前端部は、リヤクッション１５の下端部に対して揺動軸３０ｂによって軸支されており、リンクプレート３０の下端部は、クッションコンロッド４０の後端部に対して揺動軸３０ｃによって軸支されている。そして、略車体前後方向に指向する長尺の棒形状をなすクッションコンロッド４０の前端部は、車幅方向左右のピボットプレート２７を互いに連結する連結フレーム２７ｃの略中央に形成された支持部２７ａに対して、揺動軸２７ｂによって軸支されている。それぞれの軸支部分には、ベアリングやカラー部材が適宜適用される。 As described above, the rear upper end portion of the link plate 30 is pivotally supported by the swing shaft 30a made of bolts or the like with respect to the extending portion 17a extending downward from the swing arm 17. Further, the front end portion of the link plate 30 is pivotally supported by the swing shaft 30b with respect to the lower end portion of the rear cushion 15, and the lower end portion of the link plate 30 swings with respect to the rear end portion of the cushion connecting rod 40. It is pivotally supported by a shaft 30c. The front end of the cushion connecting rod 40, which has a long rod shape oriented in the front-rear direction of the vehicle body, is formed on a support portion 27a formed at substantially the center of a connecting frame 27c that connects the left and right pivot plates 27 in the vehicle width direction to each other. On the other hand, it is pivotally supported by the swing shaft 27b. Bearings and collar members are appropriately applied to each shaft support portion.

上記した構成によれば、スイングアーム１７がリヤクッション１５の弾発力に反して上方に揺動すると、リンクプレート３０が上方に引き上げられながらリヤクッション１５を収縮させる。これにより、リンクプレート３０の下端部を支持するクッションコンロッド４０には、引張荷重Ｆが生じることとなる。 According to the above configuration, when the swing arm 17 swings upward against the elastic force of the rear cushion 15, the link plate 30 is pulled upward and the rear cushion 15 is contracted. As a result, a tensile load F is generated on the cushion connecting rod 40 that supports the lower end of the link plate 30.

図３は、クッションコンロッド４０の斜視図である。また、図４はクッションコンロッド４０を構成する繊維強化樹脂５０および金属部材６０の斜視図である。以下では、車体前後方向に指向するクッションコンロッド４０に関して、前後方向の寸法を「長さ」、上下方向の寸法を「厚さ」、車幅方向（左右方向）の寸法を「幅」とそれぞれ呼称する。 FIG. 3 is a perspective view of the cushion connecting rod 40. Further, FIG. 4 is a perspective view of the fiber reinforced resin 50 and the metal member 60 constituting the cushion connecting rod 40. In the following, with respect to the cushion control rod 40 oriented in the front-rear direction of the vehicle body, the dimensions in the front-rear direction are referred to as "length", the dimensions in the vertical direction are referred to as "thickness", and the dimensions in the vehicle width direction (horizontal direction) are referred to as "width". do.

クッションコンロッド４０は、アルミ等の金属で構成される金属部材６０の表面に、無端状の円環形状をなす繊維強化樹脂５０を接着剤によって貼り付けた構成とされる。金属部材６０は、外側形状のほか、揺動軸が通る貫通孔６１ａや各部の肉抜き孔まで車体前後方向および上下方向にそれぞれ対称形状とされる。これにより、金属部材６０にかかる引張荷重Ｆを各部に偏りなく作用させることができる。 The cushion connecting rod 40 has a structure in which a fiber reinforced resin 50 having an endless ring shape is attached to the surface of a metal member 60 made of a metal such as aluminum with an adhesive. In addition to the outer shape, the metal member 60 has a symmetrical shape in the front-rear direction and the vertical direction of the vehicle body up to the through hole 61a through which the swing shaft passes and the lightening hole of each part. As a result, the tensile load F applied to the metal member 60 can be applied to each part without bias.

本願発明に係るクッションコンロッド４０は、金属部材６０の外周に無端状の繊維強化樹脂５０を接着固定することにより、単にクッションコンロッド４０の軽量化を図るだけでなく、金属部材６０の強度限界を超える引張荷重Ｆが加えられた際に、金属部材６０から繊維強化樹脂５０が剥離した状態を目視で確認できるように構成することを目的とする。繊維強化樹脂５０の剥離が確認できれば、破損状態の初期の段階で交換作業を行うことができるので、特に、レース車両等においてはクッションコンロッドを必要最低限の強度に抑えて軽量化を推進することが可能となる。 The cushion control rod 40 according to the present invention not only reduces the weight of the cushion control rod 40 but also exceeds the strength limit of the metal member 60 by adhesively fixing the endless fiber reinforced resin 50 to the outer periphery of the metal member 60. It is an object of the present invention to be configured so that the state in which the fiber reinforced resin 50 is peeled off from the metal member 60 can be visually confirmed when a tensile load F is applied. If the peeling of the fiber reinforced resin 50 can be confirmed, the replacement work can be performed at the initial stage of the damaged state. Therefore, especially in a race vehicle or the like, the cushion connecting rod should be suppressed to the minimum necessary strength to promote weight reduction. Is possible.

繊維強化樹脂５０は、炭素繊維やガラス繊維等の繊維素材を合成樹脂で固めてなる長尺の帯状素材（図６参照）を、金属部材６０の表面に複数回巻き付けることで無端状に構成される。長尺の帯状素材は、繊維素材の方向がその長手方向に沿うように形成されている。 The fiber-reinforced resin 50 is formed in an endless shape by winding a long strip-shaped material (see FIG. 6) formed by solidifying a fiber material such as carbon fiber or glass fiber with a synthetic resin around the surface of the metal member 60 a plurality of times. NS. The long strip-shaped material is formed so that the direction of the fiber material is along the longitudinal direction thereof.

図５は、クッションコンロッド４０の側面図である。クッションコンロッド４０の金属部材６０の両端部には、貫通孔６１ａが形成された支持部６１が設けられている。両端部の支持部６１の間には、上下および左右に対称形状の第１肉抜き孔６５、第２肉抜き孔６６および第３肉抜き孔６２が形成されている。 FIG. 5 is a side view of the cushion connecting rod 40. Support portions 61 having through holes 61a are provided at both ends of the metal member 60 of the cushion connecting rod 40. A first lightening hole 65, a second lightening hole 66, and a third lightening hole 62 having symmetrical shapes are formed between the support portions 61 at both ends.

金属部材６０の上下方向の中央には、上下の肉抜き孔６５，６６を分割する壁でもある板状の中央リブ６９が、両端部の貫通孔６１ａの中心を結ぶ直線に沿って配設されている。中央リブ６９の上下には、第１肉抜き孔６５と第２肉抜き孔６６とを分割する壁でもある計４本の縦リブ６４が設けられている。 At the center of the metal member 60 in the vertical direction, a plate-shaped central rib 69, which is also a wall for dividing the upper and lower lightening holes 65 and 66, is arranged along a straight line connecting the centers of the through holes 61a at both ends. ing. Above and below the central rib 69, a total of four vertical ribs 64, which are also walls for dividing the first lightening hole 65 and the second lightening hole 66, are provided.

第１肉抜き孔６５の第１外側壁６７および第２肉抜き孔６６の第２外側壁６８は、繊維強化樹脂５０が接着される金属部材６０の表面を構成する。繊維強化樹脂５０は、支持部６１の円弧状の外周面から外側壁６７，６８の表面にかけて接着される。 The first outer wall 67 of the first lightening hole 65 and the second outer wall 68 of the second lightening hole 66 constitute the surface of the metal member 60 to which the fiber reinforced resin 50 is adhered. The fiber reinforced resin 50 is adhered from the arcuate outer peripheral surface of the support portion 61 to the surfaces of the outer walls 67 and 68.

金属部材６０の中央寄りの位置には、支持部６１の外周部で計測される厚さ寸法Ｔａより厚さ寸法が小さくなる凹部Ｃが形成されている。より具体的には、中央リブ６９と平行に配設される第１外側壁６７は、直線部Ａを構成する。この第１外側壁６７の部分で計測される金属部材６０の厚さ寸法Ｔは、支持部６１の厚さ寸法Ｔａより小さく設定されている。また、第１外側壁６７の両端に連なる第２外側壁６８は、中央の厚さ寸法Ｔから両端の厚さ寸法Ｔａに向けて厚さ寸法が徐々に増大する傾斜部Ｂを構成している。凹部Ｃは、直線部Ａおよび直線部Ａの両端に連なる傾斜部Ｂによって構成される。そして、金属部材６０の縦リブ６４は、第１外側壁６７と第２外側壁６８とが連結される点１００に対応する位置に配設されている。 A recess C having a thickness smaller than the thickness Ta measured at the outer periphery of the support portion 61 is formed at a position near the center of the metal member 60. More specifically, the first outer wall 67 arranged parallel to the central rib 69 constitutes the straight line portion A. The thickness dimension T of the metal member 60 measured at the portion of the first outer wall 67 is set to be smaller than the thickness dimension Ta of the support portion 61. Further, the second outer wall 68 connected to both ends of the first outer wall 67 constitutes an inclined portion B whose thickness dimension gradually increases from the central thickness dimension T to the thickness dimension Ta at both ends. .. The recess C is composed of a straight portion A and an inclined portion B connected to both ends of the straight portion A. The vertical rib 64 of the metal member 60 is arranged at a position corresponding to a point 100 at which the first outer wall 67 and the second outer wall 68 are connected.

図６は、図５に示す破線円２００部分の拡大図である。繊維強化樹脂５０は、金属部材６０の表面にフィルム状の接着剤５２を張り付けた後、長尺の帯状素材５１を、巻き始め点Ｓから巻き終わり点Ｇに至るまで複数回（例えば、１０回）巻き付けることで構成される。このように、長尺の帯状素材５１を巻き付けることから、素材の切れ端が発生することが少なく、繊維強化樹脂５０の製造における歩留まりが高められる。また、巻き付け行程を機械化することにより、素材を手作業で張り付ける工程をなくして生産工数を低減できる。そして、帯状素材５１を巻き付けた後は、全体を加熱することで、熱硬化性の接着剤５２が硬化すると共に、互いの帯状素材５１の間も固着されることとなる。 FIG. 6 is an enlarged view of the broken line circle 200 portion shown in FIG. In the fiber reinforced resin 50, after the film-like adhesive 52 is attached to the surface of the metal member 60, the long strip-shaped material 51 is wound a plurality of times (for example, 10 times) from the winding start point S to the winding end point G. ) Consists of wrapping. Since the long strip-shaped material 51 is wound in this way, scraps of the material are less likely to be generated, and the yield in the production of the fiber reinforced resin 50 is increased. Further, by mechanizing the winding process, it is possible to reduce the production man-hours by eliminating the process of manually pasting the material. Then, after the strip-shaped material 51 is wound, the entire band-shaped material 51 is heated to cure the thermosetting adhesive 52 and to be fixed between the strip-shaped materials 51.

このように形成される繊維強化樹脂５０は、帯状素材５１の繊維方向が長手方向に沿っているため、すべての層の繊維素材がつながっていることとなり、クッションコンロッド４０の耐引張荷重を高めることができる。また、繊維方向が一定であることで層間の接着強度も高められ、層間剥離が起こりにくくなる。 In the fiber-reinforced resin 50 formed in this way, since the fiber direction of the strip-shaped material 51 is along the longitudinal direction, the fiber materials of all layers are connected, and the tensile load resistance of the cushion connecting rod 40 is increased. Can be done. Further, since the fiber direction is constant, the adhesive strength between the layers is increased, and delamination is less likely to occur.

図７は、引張荷重Ｆの係り方を示すクッションコンロッド４０の側面図である。図８は、破損状態に至ったクッションコンロッド４０の側面図である。クッションコンロッド４０の支持部６１に加えられる引張荷重Ｆは、金属部材６０を長手方向に伸ばす力として作用すると共に、凹部Ｃにおける繊維強化樹脂５０に作用する張力Ｆｔによって、金属部材６０の表面から繊維強化樹脂５０を剥離させようとする上下方向の力Ｆｗとして作用する。よって、クッションコンロッド４０が初期の破損状態に至るまでの耐引張荷重は、金属部材６０の引張強度および接着剤の耐剥離強度に影響されることとなる。 FIG. 7 is a side view of the cushion connecting rod 40 showing how the tensile load F is engaged. FIG. 8 is a side view of the cushion connecting rod 40 that has reached a damaged state. The tensile load F applied to the support portion 61 of the cushion connecting rod 40 acts as a force to extend the metal member 60 in the longitudinal direction, and the tension Ft acting on the fiber reinforced resin 50 in the recess C causes the fibers from the surface of the metal member 60. It acts as a vertical force Fw that tries to peel off the reinforcing resin 50. Therefore, the tensile load withstand until the cushion connecting rod 40 reaches the initial broken state is affected by the tensile strength of the metal member 60 and the peel strength of the adhesive.

繊維強化樹脂５０を剥離させようとする力Ｆｗは、第１外側壁６７と第２外側壁６８とが連結される点１００に集中する。縦リブ６４は、点１００に対応する位置に設けられており、上下方向への引張荷重を受ける。そして、引張荷重Ｆがクッションコンロッド４０の耐引張荷重を超えると、金属部材６０が長手方向に延びると共に、金属部材６０の点１００の部分から繊維強化樹脂５０の剥離が始まることとなる。 The force Fw for peeling the fiber reinforced resin 50 is concentrated at the point 100 where the first outer wall 67 and the second outer wall 68 are connected. The vertical rib 64 is provided at a position corresponding to the point 100, and receives a tensile load in the vertical direction. When the tensile load F exceeds the withstand load of the cushion connecting rod 40, the metal member 60 extends in the longitudinal direction, and the fiber reinforced resin 50 starts peeling from the point 100 portion of the metal member 60.

図５に示したように、金属部材６０の凹部Ｃは、直線部Ａと傾斜部Ｂとから構成されているため、強度限界を超える引張荷重Ｆがクッションコンロッド４０に加えられた際には、繊維強化樹脂５０を剥離しようとする力Ｆｗが生じる。このため、点１００から繊維強化樹脂５０の剥離が生じやすくなる。その結果、点１００において繊維強化樹脂５０の剥離を目視で確認しやすく、クッションコンロッド４０の交換時期を確認することが一層容易となる。
As shown in FIG. 5, since the recess C of the metal member 60 is composed of a straight portion A and an inclined portion B, when a tensile load F exceeding the strength limit is applied to the cushion connecting rod 40, the recess C is composed of a straight portion A and an inclined portion B. A force Fw that tries to peel off the fiber reinforced resin 50 is generated. Therefore, the fiber reinforced resin 50 is likely to be peeled off from the point 100. As a result , it becomes easier to visually confirm the peeling of the fiber reinforced resin 50 at the point 100, and it becomes easier to confirm the replacement time of the cushion connecting rod 40.

図８では、凹部Ｃから剥離した繊維強化樹脂５０が直線状となるまで金属部材６０が変形した状態を示している。この状態に至っても、無端状をなす繊維強化樹脂５０が破断しない限りクッションコンロッド４０の機能を維持できるので、機能不全を生じる前に交換作業を行うことが可能となる。 FIG. 8 shows a state in which the metal member 60 is deformed until the fiber reinforced resin 50 peeled from the recess C becomes linear. Even in this state, the function of the cushion connecting rod 40 can be maintained as long as the endless fiber reinforced resin 50 is not broken, so that the replacement work can be performed before the malfunction occurs.

なお、クッションコンロッドの指向方向や配設位置、金属部材の材質や形状、肉抜き孔やリブの形状、繊維強化樹脂の材質や帯状素材の形状、帯状素材の巻き数、接着剤の材質や形状等は、上記実施形態に限られず、種々の変更が可能である。例えば、金属部材の形状は、適用部分の特性や要求に合わせて、前後上下で非対称の形状としてもよい。なお、金属部材を無端状の熱硬化樹脂で覆うようにした上記した構成は、自動二輪車のクッションコンロッドに限られず、車体フレームのクロスパイプ、シートフレーム、エンジンを懸架するロッド部材等の引張荷重が加えられる各種の部材に適用できる。 The direction and arrangement position of the cushion connecting rod, the material and shape of the metal member, the shape of the lightening holes and ribs, the shape of the fiber reinforced resin material and the strip-shaped material, the number of turns of the strip-shaped material, and the material and shape of the adhesive. Etc. are not limited to the above-described embodiment, and various changes can be made. For example, the shape of the metal member may be asymmetrical in the front-back and up-down directions according to the characteristics and requirements of the application portion. The above configuration in which the metal member is covered with an endless thermosetting resin is not limited to the cushion connecting rod of a motorcycle, and the tensile load of the cross pipe of the vehicle body frame, the seat frame, the rod member that suspends the engine, etc. is applied. It can be applied to various members to be added.

１…自動二輪車（鞍乗型車両）、１５…リヤクッション、３０…リンクプレート、４０…クッションコンロッド、５１… 帯状素材、５２…接着剤、６０…金属部材、６１…支持部、６１ａ…貫通孔、６２…第３肉抜き孔、６４…縦リブ、６５…第１肉抜き孔、６６…第２肉抜き孔、６７…第１外側壁、６８…第２外側壁、６９…中央リブ、１００…点、Ａ…直線部、Ｂ…傾斜部、Ｃ…凹部、Ｆ…引張荷重（荷重） 1 ... Motorcycle (saddle-mounted vehicle), 15 ... Rear cushion, 30 ... Link plate, 40 ... Cushion conrod, 51 ... Band-shaped material, 52 ... Adhesive, 60 ... Metal member, 61 ... Support, 61a ... Through hole , 62 ... 3rd lightening hole, 64 ... vertical rib, 65 ... 1st lightening hole, 66 ... 2nd lightening hole, 67 ... 1st outer wall, 68 ... 2nd outer wall, 69 ... central rib, 100 ... Point, A ... Straight part, B ... Inclined part, C ... Recessed part, F ... Tensile load (load)

Claims (5)

後輪（ＷＲ）を回転自在に軸支すると共に車体フレーム（２）に対して揺動可能に取り付けられるスイングアーム（１７）と、該スイングアーム（１７）に揺動反力を与えるリヤクッション（１５）と、該リヤクッション（１５）および前記スイングアーム（１７）を互いに揺動可能に軸支するリンクプレート（３０）と、該リンクプレート（３０）の一端部を前記車体フレーム（２）に揺動可能に軸支するクッションコンロッド（４０）とを有する自動二輪車（１）に適用される鞍乗型車両のクッションコンロッドにおいて、
前記クッションコンロッド（４０）が、前記リヤクッション（１５）の弾発力に反して前記スイングアーム（１７）が揺動する際に荷重（Ｆ）が加えられる長尺部材であり、
前記クッションコンロッド（４０）は、金属部材（６０）の表面の一部を、無端状をなす繊維強化樹脂（５０）で覆った構成とされており、
前記繊維強化樹脂（５０）が、フィルム状の接着剤（５２）で前記金属部材（６０）の表面に接着されていることを特徴とする鞍乗型車両のクッションコンロッド。 A swing arm (17) that rotatably supports the rear wheel (WR) and is swingably attached to the vehicle body frame (2), and a rear cushion that applies a swing reaction force to the swing arm (17). 15), a link plate (30) that swingably supports the rear cushion (15) and the swing arm (17), and one end of the link plate (30) are attached to the vehicle body frame (2). In the cushion connecting rod of a saddle-type vehicle applied to a motorcycle (1) having a cushion connecting rod (40) that swings and supports the shaft.
The cushion connecting rod (40) is a long member to which a load (F) is applied when the swing arm (17) swings against the elastic force of the rear cushion (15).
The cushion connecting rod (40) has a structure in which a part of the surface of the metal member (60) is covered with a fiber-reinforced resin (50) having an endless shape.
A cushion connecting rod for a saddle-type vehicle, wherein the fiber-reinforced resin (50) is adhered to the surface of the metal member (60) with a film-like adhesive (52). 前記金属部材（６０）の長手方向の両端部に、前記荷重（Ｆ）が加えられる支持部（６１）がそれぞれ設けられており、
前記両端部の支持部（６１）の間に、前記金属部材（６０）の厚さ寸法（Ｔ）が前記支持部（６１）の厚さ寸法（Ｔａ）より小さくなる凹部（Ｃ）が設けられると共に、複数の肉抜き孔（６２，６５，６６）が形成されており、
前記繊維強化樹脂（５０）が、少なくとも前記支持部（６１）および前記凹部（Ｃ）の表面を覆うことを特徴とする請求項１に記載の鞍乗型車両のクッションコンロッド。 Support portions (61) to which the load (F) is applied are provided at both ends of the metal member (60) in the longitudinal direction.
A recess (C) is provided between the support portions (61) at both ends so that the thickness dimension (T) of the metal member (60) is smaller than the thickness dimension (Ta) of the support portion (61). At the same time, a plurality of lightening holes (62, 65, 66) are formed.
The cushion connecting rod for a saddle-mounted vehicle according to claim 1, wherein the fiber-reinforced resin (50) covers at least the surfaces of the support portion (61) and the recess (C). 前記繊維強化樹脂（５０）が、前記金属部材（６０）の表面に長尺の帯状素材（５１）を複数回巻き付けることによって構成されることを特徴とする請求項２に記載の鞍乗型車両のクッションコンロッド。 The saddle-mounted vehicle according to claim 2, wherein the fiber-reinforced resin (50) is formed by winding a long strip-shaped material (51) around the surface of the metal member (60) a plurality of times. Cushion connecting rod. 前記繊維強化樹脂（５０）の繊維方向が、前記帯状素材（５１）の長手方向に沿っていることを特徴とする請求項３に記載の鞍乗型車両のクッションコンロッド。 The cushion connecting rod for a saddle-mounted vehicle according to claim 3, wherein the fiber direction of the fiber-reinforced resin (50) is along the longitudinal direction of the strip-shaped material (51). 前記金属部材（６０）に設けられる凹部（Ｃ）が、長手方向の略中央で一定の厚さ寸法（Ｔ）を維持する直線部（Ａ）と、該直線部（Ａ）の両端部から前記支持部（６１）に向かって徐々に厚さ寸法を増す傾斜部（Ｂ）とからなることを特徴とする請求項２ないし４のいずれかに記載の鞍乗型車両のクッションコンロッド。 The recesses (C) provided in the metal member (60) are a straight portion (A) that maintains a constant thickness dimension (T) at substantially the center in the longitudinal direction, and the straight portion (A) from both ends. The cushion connecting rod for a saddle-mounted vehicle according to any one of claims 2 to 4, further comprising an inclined portion (B) whose thickness gradually increases toward the support portion (61).
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US16/253,615 US11325316B2 (en) 2018-01-25 2019-01-22 Cushion connecting rod of saddled vehicle
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EP3517421A1 (en) 2019-07-31
US11325316B2 (en) 2022-05-10
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US20190224920A1 (en) 2019-07-25
CN110077513B (en) 2021-06-15
CN110077513A (en) 2019-08-02

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